C#C
C#•6mo ago
VoidPointer

"Faulted" WCF SOAP Client - Suspected VS Update

On Monday I had a big mystery bug. I was suddenly getting a "client faulted" exception in a WCF client that I had previously been testing OK on:
?client
{MyApi.MyApiWSSoapClient}
    Channel: 'client.Channel' threw an exception of type 'System.ServiceModel.CommunicationObjectFaultedException'
    ChannelFactory: {System.ServiceModel.ChannelFactory<MyApi.MyApiWSSoap>}
    ClientCredentials: {System.ServiceModel.Description.ClientCredentials}
    Endpoint: Address={https://.......}
    InnerChannel: 'client.InnerChannel' threw an exception of type 'System.ServiceModel.CommunicationObjectFaultedException'
    State: Faulted
    ThisLock: {object}
    _channel: null
    _channelFactory: {System.ServiceModel.ChannelFactory<MyApi.MyApiWSSoap>}
    _syncRoot: {object}

My boss called me over because it was running on his machine, so I double checked everything my side and found I had to update all my System.ServiceModel.* package refs from 4.4.* to 4.10.*, which immediately resolved my faulted client. My big question is how was my code working before the appearance of the faulted client? It seems I may have run the latest VS update earlier that day. How else would my API's WCF dependencies suddenly be broken?
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